Acid-stable cytochromes in ferrous ion oxidizing cell-free preparations from Thiobacillus ferrooxidans
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چکیده
منابع مشابه
Facultative Iron-Oxidizing Bacterium, Thiobacillus ferrooxidans
Properties ofa heat-labile glucose transport system in Thiobacillusferrooxidans strain AP-44 were investigated with iron-grown cells. [14C]glucose was incorporated into ceil fractions, and the cells metabolized [14C]glucose to 14CO2. Amytal, rotenone, cyanide, azide, 2,4-dinitrophenol, and dicyclohexylcarbodiimide strongly inhibited [14C]glucose uptake activity, suggesting the presence of an en...
متن کاملSensitivity of Iron-Oxidizing Bacteria, Thiobacillus ferrooxidans and Leptospirillum ferrooxidans, to Bisulfite Ion.
When grown on iron-salt medium supplemented with the bisulfite ion, Leptospirillum ferrooxidans was much more sensitive to the ion than was Thiobacillus ferrooxidans. The causes of the sensitivity of L. ferrooxidans to the bisulfite ion were studied. The bisulfite ion completely inhibited the iron-oxidizing activities of L. ferrooxidans and T. ferrooxidans at 0.02 and 0.2 mM, respectively. A tr...
متن کاملFerrous Iron Oxidation by Thiobacillus ferrooxidans: Inhibition with Benzoic Acid, Sorbic Acid, and Sodium Lauryl Sulfate.
Benzoic acid, sorbic acid, and sodium lauryl sulfate at low concentrations (5 to 10 mg/liter) each effectively inhibited bacterial oxidation of ferrous iron in batch cultures of Thiobacillus ferrooxidans. The rate of chemical oxidation of ferrous iron in low-pH, sterile batch reactors was not substantially affected at the tested concentrations (5 to 50 mg/liter) of any of the compounds.
متن کاملOxidation of Ferrous Iron and Elemental Sulfur by Thiobacillus ferrooxidans.
The oxidation of ferrous iron and elemental sulfur by Thiobacillus ferrooxidans that was absorbed and unabsorbed onto the surface of sulfur prills was studied. Unadsorbed sulfur-grown cells oxidized ferrous iron at a rate that was 3 to 7 times slower than that of ferrous iron-grown cells, but sulfur-grown cells were able to reach the oxidation rate of the ferrous iron-adapted cells after only 1...
متن کاملOxidation of Ferrous Sulfate by Growing Cultures of Thiobacillus Ferrooxidans
Oxidation of ferrous iron in acid solutions is an important reaction producing soluble ferric iron. The oxidizing property makes the ferric ion one of the most useful reagents in hydrometallurgy. The ferrous iron oxidation kinetics of Thiobacillus ferrooxidans growing in batch culture was examined. T. ferrooxidans oxidized ferrous iron at pH 1.5 in the presence of oxygen and utilized carbon dio...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1992
ISSN: 0378-1097
DOI: 10.1016/0378-1097(92)90546-z